CVE-2026-3187 feiyuchuixue sz-boot-parent API Endpoint upload unrestricted upload
Attackers can upload malicious files via the admin API endpoint, potentially leading to remote code execution or security bypass.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-3187?
CVE-2026-3187 is a medium-severity vulnerability in feiyuchuixue sz-boot-parent, published on 25 Feb 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
A vulnerability was identified in feiyuchuixue sz-boot-parent up to 1.3.2-beta. Affected by this issue is some unknown functionality of the file /api/admin/sys-file/upload of the component API Endpoint. Such manipulation leads to unrestricted upload. The attack may be launched remotely. The exploit is publicly available and might be used. Upgrading to version 1.3.3-beta can resolve this issue. The name of the patch is aefaabfd7527188bfba3c8c9eee17c316d094802. Upgrading the affected component is recommended. The project was informed beforehand and acted very professional: "We have introduced a whitelist restriction on the /api/admin/sys-file/upload endpoint via the oss.allowedExts and oss.allowedMimeTypes configuration options, allowing the specification of permitted file extensions and MIME types for uploads."
Which versions are affected by CVE-2026-3187?
It affects 1 product.
Products include Szadmin Sz-Boot-Parent.
How do I fix CVE-2026-3187?
No fix has been published for CVE-2026-3187 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-3187 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-3187 exists.
Other vulnerabilities in feiyuchuixue sz-boot-parent
Sources
Also known as GHSA-8p92-v8gg-gvcv.